// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_LOADER_RESOURCE_CONTROLLER_H_
#define CONTENT_BROWSER_LOADER_RESOURCE_CONTROLLER_H_

#include "content/common/content_export.h"

namespace content {

// Used to either resume a deferred resource load or cancel a resource load at
// any time.  CancelAndIgnore is a variation of Cancel that also causes the
// requester of the resource to act like the request was never made.  By
// default, load is cancelled with ERR_ABORTED code. CancelWithError can be used
// to cancel load with any other error code.
class CONTENT_EXPORT ResourceController {
public:
    virtual void Cancel() = 0;
    virtual void CancelAndIgnore() = 0;
    virtual void CancelWithError(int error_code) = 0;

    // Resumes the request. May only be called if the request was previously
    // deferred. Guaranteed not to call back into the ResourceHandler, or destroy
    // it, synchronously.
    virtual void Resume() = 0;

protected:
    virtual ~ResourceController() { }
};

} // namespace content

#endif // CONTENT_BROWSER_LOADER_RESOURCE_CONTROLLER_H_
